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cad-agent/mcp_bridge/__main__.py
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"""入口:python -m mcp_bridge [options]"""
import argparse
import json
import sys
from dwg_review import config
from . import __version__
from .server import StdioBridge
def build_parser():
parser = argparse.ArgumentParser(
prog="mcp_bridge",
description="把标准 MCP 客户端(stdio)桥接到 CAD 基座(裸 TCP)。",
)
parser.add_argument("--host", default=None, help=f"CAD 基座主机(默认 {config.HOST})")
parser.add_argument("--port", type=int, default=None,
help=f"CAD 基座端口(默认 {config.PORT})")
parser.add_argument("--timeout", type=float, default=None,
help=f"单次调用超时秒数(默认 {config.CALL_TIMEOUT})")
parser.add_argument("--verbose", action="store_true", help="把诊断信息打到 stderr")
parser.add_argument("--print-config", action="store_true",
help="打印可直接粘进 MCP 客户端的配置片段后退出")
return parser
def print_config(args):
host = args.host or config.HOST
port = args.port if args.port is not None else config.PORT
snippet = {
"mcpServers": {
"cad-autocad": {
"command": sys.executable,
"args": ["-m", "mcp_bridge"],
"env": {
# 用绝对路径,避免依赖客户端的工作目录
"PYTHONPATH": str(config.PROJECT_ROOT),
"CAD_MCP_HOST": host,
"CAD_MCP_PORT": str(port),
},
}
}
}
print(json.dumps(snippet, ensure_ascii=False, indent=2))
return 0
def main(argv=None):
args = build_parser().parse_args(argv)
if args.print_config:
return print_config(args)
bridge = StdioBridge(
host=args.host, port=args.port, timeout=args.timeout, verbose=args.verbose
)
if args.verbose:
print(
f"[mcp_bridge] v{__version__} 转发到 {bridge.host}:{bridge.port},"
f"单次超时 {bridge.timeout}s",
file=sys.stderr, flush=True,
)
bridge.run()
return 0
if __name__ == "__main__":
sys.exit(main())